DP83848YB: ThermalPad Dimension

Hi Cedrick,

The thermal pad information is located in this Application Report: http://www.ti.com/lit/an/slma002h/slma002h.pdf

Please see note D in the DP83848YB datasheet that points you to this application report.

Hi Ross,

Thank you for your response. 

I've already checked the SLMA002 document, however it is still unclear to me.

On page 9 of that document, there are several example of thermal land size and via patterns listed. The closest that I can find is the "TQFP (48PHP) 3x3" drawing located on the top-right side. However, the DP83848YB/NOPB is in HLQFP (PTB) package. Also, it is noted right below these examples that we have to check the device-specific data sheet for exposed pad dimensions and for thermal via recommendations. 

Additionally, I've check the datasheet of DP83848-EP for possible reference. I've noticed that there's a board layout "PTB0048A" however it seems the thermal pad is small. (https://www.ti.com/lit/ds/symlink/dp83848-ep.pdf#page=95)

Could you please verify if the thermal pad dimension of DP83848YB/NOPB is the same as the DP83848-EP (DP83848MPTBEP) shown in the link above. If not, could you please help us get the proper dimension of the thermal pad of DP83848YB/NOPB?

We would appreciate if you could help us with this matter.  


Regards,

Cedrick